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论述了烟草的营养抗病性的研究方法与应用途径，并提出营养状抗性的机制一方面决定其对病原物的侵染活动能力；另一方面影响对病原物供应养分的状况。
The research methods and application ways of tobacco nutrition nutrition resistance were discussed. The mechanism of nutritional resistance was put forward to determine its ability of infecting pathogens on the one hand and to affect the supply of nutrients to the pathogen on the other hand.